KENNEDY SPACE CENTER, FLA. -- After rollback of the Rotating Service Structure, Space Shuttle Atlantis is revealed on pad 39B prior to launch. The orbiter access arm with the White Room at the end can be seen extending toward the cockpit. The White Room provides entry into the Shuttle for the crew. Above the orange external tank is the vent hood, called the "beanie cap." The Shuttle is scheduled for launch Oct. 7 at 3:46 p.m. EDT on mission STS-112.